Quantum Entanglements and Hauntological Relations of Inheritance
... Bohr? Did Heisenberg hope to find out what Bohr knew about the Allied bomb project? Did he come to warn Bohr about the German bomb project to reassure him that he was doing everything in his power to stall it? Did he want to see if he could persuade Bohr to take advantage of their status as authorit ...
... Bohr? Did Heisenberg hope to find out what Bohr knew about the Allied bomb project? Did he come to warn Bohr about the German bomb project to reassure him that he was doing everything in his power to stall it? Did he want to see if he could persuade Bohr to take advantage of their status as authorit ...
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... for massive computational speedup. QC-based algorithms, in contrast to classical algorithms, traverse large solution spaces exponentially fast by manipulating qubits, which are superpositions of 0 and 1 states, instead of individual bits. Taking advantage of this, QC algorithms have been devised for ...
... for massive computational speedup. QC-based algorithms, in contrast to classical algorithms, traverse large solution spaces exponentially fast by manipulating qubits, which are superpositions of 0 and 1 states, instead of individual bits. Taking advantage of this, QC algorithms have been devised for ...
Contradiction of Quantum Mechanics with Local Hidden Variables
... argument for the incompleteness of quantum mechanics. The argument was based on the validity of two premises: no action at a distance (locality) and realism. Bell [2] later showed that the predictions of quantum mechanics are incompatible with the premises of local realism (or local hidden variable ...
... argument for the incompleteness of quantum mechanics. The argument was based on the validity of two premises: no action at a distance (locality) and realism. Bell [2] later showed that the predictions of quantum mechanics are incompatible with the premises of local realism (or local hidden variable ...
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... emerge in Section 8. The derivable notions of mixed states and non-projective measurements will not play a significant rôle in this paper. The values x1 , . . . , xn are in effect merely labels distinguishing the projectors P1 , . . . , Pn in the above sum. Hence we can abstract over them and think ...
... emerge in Section 8. The derivable notions of mixed states and non-projective measurements will not play a significant rôle in this paper. The values x1 , . . . , xn are in effect merely labels distinguishing the projectors P1 , . . . , Pn in the above sum. Hence we can abstract over them and think ...
Rewriting measurement-based quantum computations with
... do not have causal flow. Unlike other translations from 1WQC, the circuits we generate do not make use of any ancilla qubits. The diagrammatic calculus we employ draws from the long tradition of graphical representations of monoidal categories. Aside from providing a very intuitive notation for reas ...
... do not have causal flow. Unlike other translations from 1WQC, the circuits we generate do not make use of any ancilla qubits. The diagrammatic calculus we employ draws from the long tradition of graphical representations of monoidal categories. Aside from providing a very intuitive notation for reas ...
Security of Quantum Key Distribution Using d
... disturbance on the channel), which happens with probability 1兾2. The use of mutually unbiased (or complementary) bases implies that if Alice and Bob use different bases, Bob’s measurement yields a random number that is uncorrelated with Alice’s state. The raw secret key is then made out of the corre ...
... disturbance on the channel), which happens with probability 1兾2. The use of mutually unbiased (or complementary) bases implies that if Alice and Bob use different bases, Bob’s measurement yields a random number that is uncorrelated with Alice’s state. The raw secret key is then made out of the corre ...
Chapter 15. - Portland State University
... Fig. 15.2.1 gives the basic idea of using Grover for graph coloring. Nodes (countries) are represented as groups of neighbor input variables. Coloring of a node is represented as a binary encoding of the set of qubits corresponding to this node. All possible colorings are created at the oracle’s in ...
... Fig. 15.2.1 gives the basic idea of using Grover for graph coloring. Nodes (countries) are represented as groups of neighbor input variables. Coloring of a node is represented as a binary encoding of the set of qubits corresponding to this node. All possible colorings are created at the oracle’s in ...
1 The quantum-classical boundary and the moments of inertia of
... maximum temporal extent for any quantum wave. Since the time and frequency spectra of wave functions are related by a Fourier transform (Robinett), this limitation on the temporal extent of quantum waves then essentially causes every quantum wave in effect to become a wave packet, and accordingly le ...
... maximum temporal extent for any quantum wave. Since the time and frequency spectra of wave functions are related by a Fourier transform (Robinett), this limitation on the temporal extent of quantum waves then essentially causes every quantum wave in effect to become a wave packet, and accordingly le ...
Technical Roadmap for Fault-Tolerant Quantum Computing
... are described in this technical roadmap. Where possible, the authors have indicated the number of qubits needed for small quantum computer applications. It is our intention to provide an impartial and accurate presentation of the fault-tolerant quantum computing technology, its developments and the ...
... are described in this technical roadmap. Where possible, the authors have indicated the number of qubits needed for small quantum computer applications. It is our intention to provide an impartial and accurate presentation of the fault-tolerant quantum computing technology, its developments and the ...
Coupling Josephson qubits via a current
... bus, and thus may yield additional errors during the communication between qubits. Finally, an effective method still lacks for refocusing the dynamical-phase shifts of the qubits to realize the desired quantum operations. Here, we propose an effective scheme for coupling any pair of superconducting ...
... bus, and thus may yield additional errors during the communication between qubits. Finally, an effective method still lacks for refocusing the dynamical-phase shifts of the qubits to realize the desired quantum operations. Here, we propose an effective scheme for coupling any pair of superconducting ...
What is density operator?
... that has one meter, one switch, and a bell. The meter is for reading out the result of a measurement (which we assume to be either ±1), while the switch is used to select which of two types of measurements the experimenter would like to make. On Alice’s side we’ll label the two possibilities A and A ...
... that has one meter, one switch, and a bell. The meter is for reading out the result of a measurement (which we assume to be either ±1), while the switch is used to select which of two types of measurements the experimenter would like to make. On Alice’s side we’ll label the two possibilities A and A ...
Indistinguishability and improper mixtures
... a mixture, but improper — it is obtained by a partial trace over the coin’s space. The error in d’Espagnat’s argument has “caused some confusion in the theory of measurement,” in Jammer’s phrase (Ref. 15, pp. 479-80, footnote), referring to the argument of Refs. 2 and 4) — but in the sense opposite ...
... a mixture, but improper — it is obtained by a partial trace over the coin’s space. The error in d’Espagnat’s argument has “caused some confusion in the theory of measurement,” in Jammer’s phrase (Ref. 15, pp. 479-80, footnote), referring to the argument of Refs. 2 and 4) — but in the sense opposite ...
Philosophy of Mind and the Problem of Free Will
... or theoretical basis to link the empirically observed correlations between conscious experiences and brain behavior to any notion of how this classically conceived physically described brain could cause to occur events having the knowingness and feelingness that characterize our conscious experience ...
... or theoretical basis to link the empirically observed correlations between conscious experiences and brain behavior to any notion of how this classically conceived physically described brain could cause to occur events having the knowingness and feelingness that characterize our conscious experience ...
Effective Field Theory Approach to Gravitationally Induced
... from the various vacuum fluctuation induced spontaneous collapse models [11,12,14–16,18,20,24,28]. It will also be interesting to try to establish whether a resulting decohered, mixed matter state can in principle be distinguished from a collapse model yielding the same matter state outcomes. Refere ...
... from the various vacuum fluctuation induced spontaneous collapse models [11,12,14–16,18,20,24,28]. It will also be interesting to try to establish whether a resulting decohered, mixed matter state can in principle be distinguished from a collapse model yielding the same matter state outcomes. Refere ...
Quantum computing
Quantum computing studies theoretical computation systems (quantum computers) that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1), quantum computation uses quantum bits (qubits), which can be in superpositions of states. A quantum Turing machine is a theoretical model of such a computer, and is also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. The field of quantum computing was initiated by the work of Yuri Manin in 1980, Richard Feynman in 1982, and David Deutsch in 1985. A quantum computer with spins as quantum bits was also formulated for use as a quantum space–time in 1968.As of 2015, the development of actual quantum computers is still in its infancy, but experiments have been carried out in which quantum computational operations were executed on a very small number of quantum bits. Both practical and theoretical research continues, and many national governments and military agencies are funding quantum computing research in an effort to develop quantum computers for civilian, business, trade, and national security purposes, such as cryptanalysis.Large-scale quantum computers will be able to solve certain problems much more quickly than any classical computers that use even the best currently known algorithms, like integer factorization using Shor's algorithm or the simulation of quantum many-body systems. There exist quantum algorithms, such as Simon's algorithm, that run faster than any possible probabilistic classical algorithm.Given sufficient computational resources, however, a classical computer could be made to simulate any quantum algorithm, as quantum computation does not violate the Church–Turing thesis.